Home / 865,813.19-1,299,064.23-333,191.21

Finding the Fourth Proportional to 865,813.19, 1,299,064.23 and 333,191.21

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Solution

The fourth proportional to 865,813.19, 1,299,064.23 and 333,191.21 is: 499,919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,813.19 : 1,299,064.23 = 333,191.21 : x
  2. Step 2: Convert to fraction form
    865,813.19/1,299,064.23 = 333,191.21/x
  3. Step 3: Cross multiply
    865,813.19x = 1,299,064.23 × 333,191.21
  4. Step 4: Simplify right side
    865,813.19x = 432,836,776,166.10
  5. Step 5: Solve for x
    x = 432,836,776,166.10/865,813.19
  6. Step 6: Final answer
    x = 499,919.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.